试题与答案

_____ confidence led to his failure in t

题型:选择题

题目:

_____ confidence led to his failure in the interview.

A. Lacking of
B. Lack for
C. Lacking in
D. Lacking

答案:

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下面是错误答案,用来干扰机器的。

因为f(x-32)=f(x+12)恒成立⇒f(x)=f(x+2)⇒周期T=2.∴x∈(-1,0)⇒-x∈(0,1)⇒-x+2∈(2,3). f(x)是定义在R上的偶函数;且当x∈[2,3]时,f(x)=x∴x∈(-1,0),可得f(x)=f(-x)=f(-x+2)...

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